layui.define(["jquery"], function (exports) {
    var jQuery = layui.jquery;


    if (typeof jQuery !== "undefined" && typeof saveAs !== "undefined") {
        var obj = (function($) {
            $.fn.wordExport = function(fileName,style) {
                fileName = typeof fileName !== 'undefined' ? fileName : "jQuery-Word-Export";
                var static = {
                    mhtml: {
                        top: "Mime-Version: 1.0\nContent-Base: " + location.href + "\nContent-Type: Multipart/related; boundary=\"NEXT.ITEM-BOUNDARY\";type=\"text/html\"\n\n--NEXT.ITEM-BOUNDARY\nContent-Type: text/html; charset=\"utf-8\"\nContent-Location: " + location.href + "\n\n<!DOCTYPE html>\n<html>\n_html_</html>",
                        head: "<head>\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">\n<style>\n_styles_\n</style>\n</head>\n",
                        body: "<body>_body_</body>"
                    }
                };

                var options = {
                    maxWidth: 624
                };
                // Clone selected element before manipulating it
                var markup = $(this).clone();

                // Remove hidden elements from the output
                markup.each(function() {
                    var self = $(this);
                    if (self.is(':hidden'))
                        self.remove();
                });

                // Embed all images using Data URLs
                var images = Array();
                var img = markup.find('img');
                for (var i = 0; i < img.length; i++) {
                    // Calculate dimensions of output image
                    //var w = Math.min(img[i].width, options.maxWidth);
                    //var h = img[i].height * (w / img[i].width);
                    var w = Math.min($(img[i]).width(), options.maxWidth);
                    var h = $(img[i]).height() * (w / $(img[i]).width());
                    // Create canvas for converting image to data URL
                    var canvas = document.createElement("CANVAS");
                    canvas.width = w;
                    canvas.height = h;
                    // Draw image to canvas
                    var context = canvas.getContext('2d');
                    context.drawImage(img[i], 0, 0, w, h);
                    // Get data URL encoding of image
                    //var uri = canvas.toDataURL("image/png");
                    $(img[i]).attr("src", img[i].src);
                    //console.log("width:", w);
                    //console.log("height:", h);
                    img[i].width = w;
                    img[i].height = h;
                    var img_id = "#" + img[i].id;
                    img[i].src = img[i].src.replace("https", "http"); //处理导出不显示的问题,如果在某些代码中出现了图片无法显示问题，可以加入该代码
                    $(canvas).attr("id", "test_word_img_" + i).width(w).height(h).insertAfter(img_id); //注释掉img处理的其他代码
                    // Save encoded image to array
                    //images[i] = {
                    //    type: uri.substring(uri.indexOf(":") + 1, uri.indexOf(";")),
                    //    encoding: uri.substring(uri.indexOf(";") + 1, uri.indexOf(",")),
                    //    location: $(img[i]).attr("src"),
                    //    data: uri.substring(uri.indexOf(",") + 1)
                    //};

                }

                // Prepare bottom of mhtml file with image data
                var mhtmlBottom = "\n";
                for (var i = 0; i < images.length; i++) {
                    mhtmlBottom += "--NEXT.ITEM-BOUNDARY\n";
                    mhtmlBottom += "Content-Location: " + images[i].location + "\n";
                    mhtmlBottom += "Content-Type: " + images[i].type + "\n";
                    mhtmlBottom += "Content-Transfer-Encoding: " + images[i].encoding + "\n\n";
                    mhtmlBottom += images[i].data + "\n\n";
                }
                mhtmlBottom += "--NEXT.ITEM-BOUNDARY--";

                //TODO: load css from included stylesheet
                var styles = style;

                // Aggregate parts of the file together
                var fileContent = static.mhtml.top.replace("_html_", static.mhtml.head.replace("_styles_", styles) + static.mhtml.body.replace("_body_", markup.html())) + mhtmlBottom;

                // Create a Blob with the file contents
                var blob = new Blob([fileContent], {
                    type: "application/msword;charset=utf-8"
                });
                saveAs(blob, fileName + ".doc");
            };
        })(jQuery);
    } else {
        if (typeof jQuery === "undefined") {
            console.error("jQuery Word Export: missing dependency (jQuery)");
        }
        if (typeof saveAs === "undefined") {
            console.error("jQuery Word Export: missing dependency (FileSaver.js)");
        }
    }

    exports("wordexport", obj);
});
